Part 301: INTRODUCTION

Section 301.101 Authority (Repealed) (Source: Repealed at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.102 Policy The General Assembly finds that pollution of the waters of this State constitutes a menace to public health and welfare, creates public nuisances, is harmful to wildlife, fish, and aquatic life, impairs domestic, agricultural, industrial, recreational, and …

Section 301.103 Repeals (Repealed) (Source: Repealed at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.104 Analytical Testing All methods to collect, preserve, and analyze samples used in applying any of the requirements of this Subtitle must be consistent with the United States Environmental Protection Agency's current manual of practice or with other procedures accep…

Section 301.105 References to Other Sections (Repealed) (Source: Repealed at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.106 Incorporations by Reference a) Abbreviations. The following abbreviated names are used for materials incorporated by reference: "ASTM" means American Society for Testing and Materials. "GPO" means Superintendent of Documents, U.S. Government Printing Office. "Stan…

Section 301.107 Severability If any provision of this Subtitle or its application to any person or in any circumstance is adjudged invalid, that adjudication will not affect the validity of this Subtitle as a whole, or any portion not adjudged invalid. (Source: Amended at 47 Ill.…

Section 301.108 Adjusted Standards (Repealed) (Source: Repealed at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.200 Definitions Except as otherwise provided within individual Parts of this Chapter, the terms defined in the following Sections have the meanings specified. (Source: Amended at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.205 Act "Act" means the Illinois Environmental Protection Act.

Section 301.210 Administrator "Administrator" means the Administrator of the United States Environmental Protection Agency or the Administrator's designee. (Source: Amended at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.215 Agency "Agency" means the Illinois Environmental Protection Agency.

Section 301.220 Aquatic Life "Aquatic Life" means native populations of fish and other aquatic life.

Section 301.221 Area of Concern "Area of Concern" or "AOC" is an area specially designated for remediation efforts. (Source: Amended at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.225 Artificial Cooling Lake "Artificial Cooling Lake" means any manmade lake, reservoir or other impoundment, constructed by damming the flow of a stream, which is used to cool the water discharged from the condensers of a steam-electric generating plant for recircula…

Section 301.230 Basin "Basin" means the area tributary to the designated body of water.

Section 301.231 Bioaccumulative Chemicals of Concern "Bioaccumulative Chemicals of Concern" or "BCC" means a chemical or class of chemicals meeting the definition at 35 Ill. Adm. Code 302.501. (Source: Amended at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.235 Board "Board" means the Illinois Pollution Control Board.

Section 301.240 CWA "CWA" means the Federal Water Pollution Control Act, as amended, (33 U.S.C. 1251 et seq., Public Law 92-500 enacted by Congress October 18, 1972 as amended by the "Clean Water Act", Public Law 95-217, enacted December 12, 1977, as amended.) (Source: Amended 5 …

Section 301.245 Calumet River System "Calumet River System" means the Calumet River, the Grand Calumet River, the Little Calumet River downstream from its confluence with the Grand Calumet, the Calumet-Sag Channel, and the Calumet Harbor Basin.

Section 301.247 Chicago Area Waterway System "Chicago Area Waterway System" means Calumet River, Grand Calumet River, Little Calumet River downstream from the confluence of Calumet River and Grand Calumet River, Calumet-Sag Channel, Lake Calumet, Chicago River and its branches do…

Section 301.250 Chicago River System "Chicago River System" means the Chicago River and its branches, the North Shore Channel, and the Chicago Sanitary and Ship Canal.

Section 301.255 Combined Sewer "Combined Sewer" means a sewer designed and constructed to receive both wastewater and land runoff. (Source: Amended at 3 Ill. Reg. 25, page 190, effective June 21, 1979)

Section 301.260 Combined Sewer Service Area "Combined Sewer Service Area" means a specific geographical drainage area served by a combined sewer system. Areas served by separate sewer systems which enter the combined system are not included. Undeveloped areas within a combined se…

Section 301.265 Construction "Construction" means commencement of on-site fabrication, erection, or installation of a treatment works, sewer, or wastewater source; or the reinstallation at a new site of any existing treatment works, sewer, or wastewater source.

Section 301.267 Conversion Factor "Conversion Factor" means the fraction of the total metal found as dissolved in the toxicity tests used to derive the water quality standards of 35 Ill. Adm. Code 302. The conversion factors are used to convert total metals water quality standard…

Section 301.270 Dilution Ratio "Dilution Ratio" means the ratio of the seven-day once in ten year low flow of the receiving stream or the lowest flow of the receiving stream when effluent discharge is expected to occur, whichever is greater, to the average flow of the treatment w…

Section 301.275 Effluent "Effluent" means any wastewater discharged, directly or indirectly, to the waters of the State or to any storm sewer, and the runoff from land used for the disposition of wastewater or sludges, but does not otherwise include nonpoint source discharges suc…

Section 301.280 Hearing Board "Hearing Board" means an Agency hearing board of one or more employees, appointed by the Director under 35 Ill. Adm. Code 309.115(b), that conducts public hearings and makes recommendations to the Agency on issuing or denying NPDES permits. (Source: …

Section 301.282 Incidental Contact Recreation "Incidental Contact Recreation" means any recreational activity in which human contact with the water is incidental and in which the probability of ingesting appreciable quantities of water is minimal, such as fishing; commercial boat…

Section 301.285 Industrial Wastes "Industrial Wastes" means any solid, liquid, or gaseous wastes resulting from any process of industry, manufacturing, trade, or business or from the development, processing, or recovery, except for agricultural crop raising, of any natural resour…

Section 301.290 Institute (Repealed) (Source: Repealed at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.295 Interstate Waters "Interstate Waters" are waters that cross or form part of the border between Illinois and one or more other states. (Source: Amended at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.300 Intrastate Waters "Intrastate Waters" are all waters of Illinois which are not interstate waters.

Section 301.301 Lake Michigan Lakewide Management Plan "Lake Michigan Lakewide Management Plan" or "LaMP" is a plan to manage the Illinois portion of Lake Michigan as approved by USEPA. (Source: Amended at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.305 Land Runoff "Land Runoff" means water reaching the waters of the State as runoff resulting from precipitation.

Section 301.307 Lower Des Plaines River "Lower Des Plaines River" means Des Plaines River from the confluence with Chicago Sanitary and Ship Canal to the Interstate 55 Bridge. (Source: Added at 35 Ill. Reg. 15071, effective August 23, 2011)

Section 301.310 Marine Toilet "Marine Toilet" means any toilet on or within any watercraft.

Section 301.311 Method Detection Level "Method Detection Level" is the minimum concentration of an analyte (substance) that can be measured and reported with 99 percent confidence that the analyte concentration is greater than zero as determined by the procedure set forth in Appe…

Section 301.312 Minimum Level "Minimum Level" or "ML" is the concentration at which the entire analytical system must give a recognizable signal and acceptable calibration point. The ML is the concentration in a sample that is equivalent to the concentration of the lowest calibra…

Section 301.313 Metals Translator "Metals Translator" means the fraction of total metal that is dissolved in the effluent or downstream water. The metals translator calculates a total metal permit limit from a dissolved metal water quality standard. In the absence of site-specifi…

Section 301.315 Modification "Modification" means: a) Any physical change in a treatment works which involves different or additional processes or equipment or which increases or decreases the capacity or efficiency of the treatment works; or b) Any change in the number or locati…

Section 301.320 New Source "New Source" means any wastewater source, the construction of which is commenced on or after the effective date of the applicable provisions of this Chapter.

Section 301.323 Primary Contact Recreation "Primary Contact Recreation" means any recreational activity in which human contact consists of full body contact with the waters, such as swimming, diving or jumping, and includes all Incidental Contact Recreation. (Source: Added at 35 …

Section 301.324 Non-contact Recreation and Non-recreational a) "Non-contact Recreation" means any recreational or other water use in which human contact with the water is unlikely, such as pass through commercial or recreational navigation, and where physical conditions or hydrol…

Section 301.325 NPDES "NPDES" means the National Pollutant Discharge Elimination System for issuing, establishing conditions for, and denying permits under Section 402 of the CWA. All terms used concerning NPDES that the CWA or regulations adopted under it define have those meani…

Section 301.330 Other Wastes "Other Wastes" means garbage, refuse, wood residues, sand, lime, cinders, ashes, offal, night soil, silt, oil, tar, dye stuffs, acids, chemicals and all other substances not sewage or industrial waste whose discharge would cause water pollution or a v…

Section 301.331 Outlier (Repealed) (Source: Repealed at 47 Ill. Reg. 4415, effective March 23, 2023)

Section 301.335 Person "Person" means any individual, partnership, co-partnership, firm, company, corporation, association, joint stock company, trust, estate, political subdivision, state agency, or any other legal entity, or their legal representative, agent or assigns.

Section 301.340 Pollutant "Pollutant" means dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, muni…